Which pair of terms are like terms?

a, 5y and 5yw
b, -2y and 4y
c, 2.4xy and 3x
d, 7ab and 3b

What is the remainder when 2872 is divided by 76? a) 51 b) 57 c) 60 d) 63

The general form of the quetion of a circle is ax^2+by^2+cx+dy+e=0 where a=b=0 if the circle has a radius of three units and the center lies on the y axis which set of values of a, b, c, d, and e might correspond to the circle

Does anyone know how to do geometryme with this problem